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Impact on respiratory tract infections of heptavalent pneumococcal conjugate vaccine administered at 3, 5 and 11 months of age

Susanna Esposito email, Alessandro Lizioli email, Annalisa Lastrico email, Enrica Begliatti email, Alessandro Rognoni email, Claudia Tagliabue email, Laura Cesati email, Vittorio Carreri email and Nicola Principi email

Respiratory Research 2007, 8:12doi:10.1186/1465-9921-8-12

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